Asked by Kristen
a cue stick strikes a stationary pool ball, exerting an average forece of 50 N over a time of 7 milliseconds. If the ball has mass .1kg, what speed does it have just after impact?
Answers
Answered by
Damon
change in momentum = force* time
which is sometimes called "impulse"
m (Vfinal -Vinitial) = F * t
if m is constant and F is constant
here Vinitial is given as zero and you know everything but Vfinal so you can solve for Vfinal
which is sometimes called "impulse"
m (Vfinal -Vinitial) = F * t
if m is constant and F is constant
here Vinitial is given as zero and you know everything but Vfinal so you can solve for Vfinal
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